Dishonored 2, Playthrough, Pt. 8

Using the time manipulation I am able to go in and around blocked objects in the environment. A shame I cannot use my void powers (blink, possession, etc). I think I found a way to the 3rd floor but cannot figure out the light fixtures yet to get there. I know I have done it before, just cannot remember. This maze of a level is frustrating in the extreme (to me anyway).